The main purpose of this paper is to analyze patterns of non-response in the social survey and to evaluate its effect on potential biases on satisfaction from life. An additional purpose is to apply the method of mixed regression, which combines the method of Ordinary Least Squares with Gini...

The extended Gini regression is a semi parametric regression which allows the user to assign different weights to different sections of the explanatory variables. We illustrate, via examples, the ability of extended Gini (EG) regression to detect sections of monotonic increase or decrease, as...

The melting pot policy intends to create a new generation of migrants that will assimilate with the native population. The instruments used by the policy makers are fiscal and educational policies, which are intended to eliminate disparities between the migrants and the native population. The...

This paper defines the efficient exam as the one that maximizes the revealed variability in the abilities of the examinnees. Variability is measured by the Gini's Mean Difference which is a robust measure of variability. Using the properties of decomposition of the Gini we identify the...

In Asia inequality in income between countries is more important than inequality within countries. In Africa, Latin America, and Western Europe and North America, by contrast, there are only small differences between countries; inequality within countries is more important. And when countries...

Although exam scores are reported using numerical values, their measurement scale is ordinal: They depend on the difficulty distribution of the questions in the exam. Hence, population groups or countries should not be ranked according to average exam scores because there may exist an admissible...

This paper shows that both OLS and Gini regression estimators can be interpreted as weighted averages of slopes of the regression curve, where the weights are derived from the Absolute Lorenz Curve of the independent variable. The instrumental variable estimators, under both approaches, can also...

Most of the literature on presumptive taxation limits its application to the less-developed economies. In this paper I argue that presumptive taxes are well entrenched in the modern world, although usually not classified as such. Presumptive taxes can take many forms, and can be incorporated in...

The huge technological improvement in data processing and the globalization have increased the demand for and the supply of indices that quantify the consequences of a policy. However, there are certain cases that quantification may be misleading in the sense that it gives the impression of an...

The basic approach to estimating the Gini and extended Gini indices is to approximate the Lorenz curve by a number of linear segments, and then estimate the Gini coefficients as the areas (or weighted areas) between the linear segments and the 45-degree line. We show that the estimator for the...